Wall Street Firms Make Push for Chat Service

Goldman Leads Group Seeking to Invest in Perzo

A group of financial firms led by Goldman Sachs Group Inc. is in talks to buy instant-messaging software developer Perzo Inc., in a bid by Wall Street to find an alternative to the Bloomberg LP services that have come to dominate communications between traders, people familiar with the matter said.

The consortium also includes banks such as J.P. Morgan Chase & Co., Bank of America Corp., Morgan Stanley and HSBC Holdings PLC, as well as investment firms BlackRock Inc., Maverick Capital Ltd. and Citadel LLC, the people...